6 replies to this topic

[bradygaster]

I had some sample code up and running in no time tonight with my brand new Netduino 3. Was super-simple to get running a basic loop-and-request sample. Then, I hit a snag. 

 

I'm trying to call a basic REST API (a Web API, actually) that returns a simple string in JSON. The endpoint is an HTTPS endpoint. I've called an HTTP endpoint without any issue, but as soon as I change the URL I'm hitting to be the "real" one I want to hit, which is HTTPS, the code fails. 

 

Is HTTPS not supported on Netduino/NETMF? I found another forum post that said it wasn't supported but it was old, so I'd hoped Netduino 3 has HTTPS support. 

 

Thanks in advance!

[Nevyn]

Is HTTPS not supported on Netduino/NETMF? I found another forum post that said it wasn't supported but it was old, so I'd hoped Netduino 3 has HTTPS support. 

 

I managed to log data to Sparkfun's Phant service using SSL over the weekend with no problems.  I did not hit the service hard, I think I only logged about 30-40 entries, 1 per 10 seconds when it was running, but it worked with no problems for me.

 

Regards,

Mark

[Robert Hugo]

Just FYI, Nevyn posted code (thank you for sharing) that you can find it under the title "Temperature Logging" in the "Netduino 3" forum.

[Chris Walker]

Hi Brady,

HTTPS is baked into the CC3100 on Netduino 3 Wi-Fi. What exception did you get when you tried to connect (and what is the exception's error code?)

CC3100 supports modern SSL standards (SSL 3.0 and TLS 1.2) using an industry-proven SSL stack so it should work well; if there's an issue with a particular HTTPS server we can dig in with TI and debug

Chris

[foxxjnm]

Seeing the same issue as Brady. When trying to hit a test WebAPI I have sitting on Azure I get the following stack trace:

 

Microsoft.SPOT.Net.Security.SslStream::Authenticate

Microsoft.SPOT.Net.Security.SslStream::AuthenticateAsClient

System.Net.HttpWebRequest::EstablishConnection

System.Net.HttpWebRequest::SubmitRequest

System.Net.HttpWebRequest::GetResponse

NetduinoSensorBaseStation.Program::Main

 

When I hit an API without SSL all is right in the world. Non ssl -> http://jsonplacehold...ode.com/posts/1

Chris DM me for the Azure address if you'd like to test against it.

[Chris Walker]

Hi foxxjnm,

You have DM

Also...what exception (and error code) do you get? Is this just basic SSL/TLS authentication?

A lot of community members are using Netduino 3 Wi-Fi and HTTPS using Azure without a hitch--so I'm really interested to see what's happening here. [And if there's some edge case that needs to be fixed in the CC3100 firmware, we'll pull in TI.]

Thanks foxxjnm,

Chris

[KiwiDev]

Hi foxxjnm

 

When I go to the URL in the post above in a desktop browser

 

jsonplaceholder.typicode.com

 

I get an error indicating that the url doesn't match the server certificate

 

*.herokuapp.com

 

What happens if you use this endpoint instead?

 

jsonplaceholder.herokuapp.com

 

Possible server cert missing/incorrectly configured?

 

@KiwiBryn

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